Results 11 to 20 of about 415 (187)
Advanced Control of an Electric Fuel-Oil Pump for Small Turbojet Engines
Aerospace, 2022 One way to efficiently control the fuel flow of small turbojet engines is to use direct control of the speed of a suitable electric fuel pump, as opposed to using relief valves.
Ladislav Főző, Rudolf Andoga
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A review of studies on air-breathing turbine engines from an energy–exergy viewpoint [PDF]
فناوری در مهندسی هوافضا, 2023 Studies show that the analysis of the first law in air propulsion systems alone is not sufficient, and for a complete study of a system, the second law and exergy analysis should also be considered.
jamasb pirkandi +2 more
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Effect of a Secondary Injection on the Performance of Three-Dimensional Over-under TBCC Exhaust Nozzles [PDF]
Journal of Applied Fluid Mechanics, 2023 A numerical simulation is used to investigate the flow field characteristics of a three-dimensional over-under turbine-based combined cycle circular-to-rectangular transition exhaust nozzle when only the turbojet flowpath is in operation.
H. Yang, Q. Yang, Z. Mu, Y. Shi, L. Chen
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Performance Evaluation of a Turbojet Engine by Exergy Analysis of its Components [PDF]
فناوری در مهندسی هوافضا, 2021 In this research, the performance of the J85-GE21 turbojet engine by exergy analysis of engine components was evaluated. The performance of the engine and its components for different power loads, at S.L.
Morteza Bayati
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Robust Control of Small Turbojet Engines
Machines, 2019 Modern turbojet engines mainly use computerized digital engine control systems. This opens the way for application of advanced algorithms aimed at increasing their operational efficiency and safety.
Rudolf Andoga +5 more
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Proceedings of Higher Educational Institutions. Маchine Building, 2019 Subsonic bypass turbojet engines of the fifth generation have reached technical maturity, with overall efficiency of 35–38%. Without changing the thermodynamic cycle of the engine, any further work in this direction is futile. The researcher proposes a method of increasing the thermodynamic effectiveness of heat engines based on the so called internal ...
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Resistant Properties of Lubricating Materials with Fullerene Nanoadditives
Проблеми трибології, 2023 The purpose of this article is to study the possibility of using fullerene additives and their effect on the antiwear properties of aviation mineral and synthetic oils.
V.P. Oleksandrenko +5 more
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Intensification of convective heat exchange of walls of heat pipe of 3D-printed micro-sized turbojet engine [PDF]
Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2022 The article considers the solution of the urgent problem of creating a micro-sized turbojet engine using 3D printing. The article describes one of the ways to cool the walls of the heat pipe of a small combustion chamber made of heat-resistant material
A. V. Pobelyansky +2 more
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Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2018 The article presents the results of solving the problem of defining the engineering concept of a power plant with a bypass turbojet engine based on the gas generator of the serial domestic engine TV7 117 developed by the JSC UEC-Klimov for an advanced ...
Yu. V. Zinenkov +3 more
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Review of Small Gas Turbine Engines and Their Adaptation for Automotive Waste Heat Recovery Systems
International Journal of Turbomachinery, Propulsion and Power, 2020 Current commercial and heavy-duty powertrains are geared towards emissions reduction. Energy recovery from exhaust gases has great potential, considering the mechanical work to be transferred back to the engine.
Dariusz Kozak, Paweł Mazuro
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